CN203731762U - Liquid resisting machine - Google Patents
Liquid resisting machine Download PDFInfo
- Publication number
- CN203731762U CN203731762U CN201420011953.3U CN201420011953U CN203731762U CN 203731762 U CN203731762 U CN 203731762U CN 201420011953 U CN201420011953 U CN 201420011953U CN 203731762 U CN203731762 U CN 203731762U
- Authority
- CN
- China
- Prior art keywords
- pipe
- outer tube
- liquid
- outer pipe
- tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000007788 liquid Substances 0.000 title abstract description 11
- 238000005057 refrigeration Methods 0.000 claims abstract description 14
- 238000010257 thawing Methods 0.000 abstract description 15
- 238000007789 sealing Methods 0.000 abstract 1
- 239000003507 refrigerant Substances 0.000 description 11
- 239000007789 gas Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 5
- 238000004134 energy conservation Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
Landscapes
- Defrosting Systems (AREA)
Abstract
The utility model discloses a liquid resisting machine. The liquid resisting machine comprises an outer pipe and an inner pipe, wherein one end of the outer pipe is connected with an outlet of a refrigeration system expansion valve, and the inner pipe stretches into the outer pipe from the other end of the outer pipe. The portion, stretching into the outer pipe, of the outer wall of the inner pipe and the end of the outer pipe are connected in a sealing mode. The end, not stretching into the outer pipe, of the inner pipe is communicated with a defrosting pipe. A discharge pipe is arranged on the side wall of the outer pipe. One end of the discharge pipe is communicated with the outer pipe, and the other end of the discharge pipe is communicated with an inlet of an evaporator. By the adoption of the liquid resisting machine, the evaporator can be easily and quickly defrosted in an energy saving mode without generating noise.
Description
Technical field
The utility model belongs to technical field of refrigerating devices, particularly a kind of liquid-resisting device for refrigeration system evaporator defrosting.
Background technology
Refrigeration system evaporator frosting meeting reduces heat exchange area and reduces the coefficient of heat transfer, has a strong impact on the effect of refrigeration system, in time defrosting.
The method that evaporator defrost is conventional has: 1, refrigeration system is installed cross valve, is moved and is changed refrigerant flow direction by cross valve, makes the cold-producing medium of HTHP pass into evaporator defrost; 2, check valve (diaphragm type or cylinder type) is installed in expansion valve outlet, by magnetic valve, check valve, the high temperature and high pressure gas of refrigeration compressor exhaust outlet is introduced to evaporator defrost; 3, evaporimeter electric heated defrosting.The shortcoming of above method is: first kind of way system complex, and cost is high; Second way check valve produces resonance with fluid, can not block expansion valve throttling completely, can extend the defrosting time; The third mode manufacturing process is loaded down with trivial details, does not utilize condensation waste heat, not energy-conservation.
Therefore the problem that, prior art exists is: as how simple, quick, energy-conservation mode realizes evaporator defrost, and can not produce noise.
Summary of the invention
The purpose of this utility model is to provide a kind of liquid-resisting device, realizes evaporator defrost in simple, quick, energy-conservation mode, and can not produce noise.
The technical solution that realizes the utility model object is: a kind of liquid-resisting device, comprise that one end and expansion valve of refrigeration system export the outer tube being connected and the inner tube that stretches into outer tube from the described outer tube other end, described outer wall of inner tube is connected with outer tube end is airtight stretching into outer tube place, one end that described inner tube does not stretch into outer tube communicates with defrosing pipe, the sidewall of described outer tube is also provided with discharge pipe, described discharge pipe one end communicates with described outer tube, and the other end communicates with the entrance of evaporimeter.
The utility model compared with prior art, its remarkable advantage:
1, simple in structure: whole liquid-resisting device is only socketed to form by small one and large one two seal of tube, simple in structure, there is no moving component, long service life, cost is low;
2, be swift in motion: refrigerant gas pressure exports refrigerant liquid pressure higher than expansion valve, gases at high pressure frontal impact low pressure liquid, thus fast, fully stop refrigerant liquid to flow out from expansion valve, shorten the defrosting time, accelerate defrosting process;
3, energy-conservation, quiet: the high-temperature high-pressure refrigerant gas that makes full use of refrigeration system generation itself is evaporimeter defrosting, and system is simple, saves the energy, and can not produce resonance noise.
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Brief description of the drawings
Fig. 1 is the utility model liquid-resisting device structural representation.
In figure, 1, expansion valve 2, outer tube 3, discharge pipe 4, inner tube 5, defrosing pipe, 6, magnetic valve 7, evaporimeter.
Detailed description of the invention
As shown in Figure 1, the utility model liquid-resisting device, it comprises that one end and expansion valve of refrigeration system 1 export the outer tube 2 being connected and the inner tube 4 that stretches into outer tube 2 from described outer tube 2 other ends, described inner tube 4 outer walls are stretching into outer tube 2 places and airtight connection of outer tube 2 ends, one end that described inner tube 4 does not stretch into outer tube 2 communicates with defrosing pipe 5, the sidewall of described outer tube 2 is also provided with discharge pipe 3, and described discharge pipe 3 one end communicate with described outer tube 2, and the other end communicates with the entrance of evaporimeter 7.
The length that described inner tube 4 stretches into outer tube 2 parts is 60%～80% of outer tube 2 length.
The diameter of described inner tube 4 is 70%～80% of outer tube 2 diameters.
Described hot gas defrosting pipe 5 connects magnetic valve 6.
Its operation principle is:
When refrigeration system is during in normal operating conditions, magnetic valve 6 cuts out, and hot gas defrosting pipe 5 is obstructed with liquid-resisting device, and high pressure refrigerant liquid is by expansion valve 1 reducing pressure by regulating flow, through liquid-resisting device, enter evaporimeter 7 by discharge pipe 3 again, and evaporation endothermic, realizes refrigeration object.
When refrigeration system is during in defrosting duty, magnetic valve 6 is opened, and high-temperature high-pressure refrigerant gas enters inner tube 4 by defrosing pipe 5, turns in the interior split flow of outer tube 2, enters evaporimeter 7 heat releases through discharge pipe 3, realizes evaporimeter defrosting object.In this process, refrigerant gas pressure exports refrigerant liquid pressure higher than expansion valve 1 on the one hand, on the other hand, gases at high pressure frontal impact low pressure liquid, thereby fast, fully stop refrigerant liquid from expansion valve 1 restriction swelling heat absorption, shorten the defrosting time, accelerated defrosting process, and can not produce resonance noise.
Because the high-temperature high-pressure refrigerant gas that makes full use of refrigeration system generation itself is evaporimeter defrosting, utilize used heat, saved the energy, and system is simple.
Claims (4)
1. a liquid-resisting device, it is characterized in that: comprise that one end and expansion valve of refrigeration system (1) export the outer tube (2) being connected and the inner tube (4) that stretches into outer tube (2) from described outer tube (2) other end, described inner tube (4) outer wall is located and outer tube (2) airtight connection of end stretching into outer tube (2), one end that described inner tube (4) does not stretch into outer tube (2) communicates with defrosing pipe (5), the sidewall of described outer tube (2) is also provided with discharge pipe (3), described discharge pipe (3) one end communicates with described outer tube (2), and the other end communicates with the entrance of evaporimeter (7).
2. liquid-resisting device according to claim 1, is characterized in that: the length that described inner tube (4) stretches into outer tube (2) part is 60%～80% of outer tube (2) length.
3. liquid-resisting device according to claim 1 and 2, is characterized in that: the diameter of described inner tube (4) is 70%～80% of outer tube (2) diameter.
4. liquid-resisting device according to claim 1, is characterized in that: described defrosing pipe (5) connects magnetic valve (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420011953.3U CN203731762U (en) | 2014-01-09 | 2014-01-09 | Liquid resisting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420011953.3U CN203731762U (en) | 2014-01-09 | 2014-01-09 | Liquid resisting machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203731762U true CN203731762U (en) | 2014-07-23 |
Family
ID=51201830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420011953.3U Expired - Lifetime CN203731762U (en) | 2014-01-09 | 2014-01-09 | Liquid resisting machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203731762U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110542273A (en) * | 2019-09-02 | 2019-12-06 | 仲恺农业工程学院 | heat pump system and graded defrosting start-stop judgment method thereof |
-
2014
- 2014-01-09 CN CN201420011953.3U patent/CN203731762U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110542273A (en) * | 2019-09-02 | 2019-12-06 | 仲恺农业工程学院 | heat pump system and graded defrosting start-stop judgment method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140723 |